TL16C451 Datasheet, PDF (4/23 Pages) Texas Instruments – ASYNCHRONOUS COMMUNICATIONS ELEMENTS

TL16C451, TL16C452
ASYNCHRONOUS COMMUNICATIONS ELEMENTS
SLLS053C – MAY 1989 – REVISED AUGUST 1999
TL16C451 functional block diagram
TL16C451
CTS0
DSR0
RLSD0
RI0
SIN0
CS0
8
DB0 – DB7
28
24
31
ACE
25
29
1
26
30
45
41
32
14 – 21
RTS0
DTR0
SOUT0
INT0
8
3 35 – 33
A0 – A2
IOW
IOR
RESET
36 Select
37
and
39 _Control
CLK
4
Logic
44
BDO
8
ERROR
SLCT
BUSY
PE
ACK
LPTOE
CS2
63
65
66
67
68
1
Parallel
Port
Parallel
Port
53 – 46
57
56
55
58
59
8
PD0 – PD7
INIT
AFD
STB
SLIN
INT2
38
TL16C452 functional block diagram
CTS0
DSR0
RLSD0
RI0
SIN0
CS0
DB0 – DB7
8
CTS1
DSR1
RLSD1
RI1
SIN1
CS1
28
31
29
30
41
32
14 – 21
TL16C452
ACE
1
24
25
26
45
8
13
ACE
12
5
2
11
8
10
6
60
62
3
RTS0
DTR0
SOUT0
INT0
RTS1
DTR1
SOUT1
INT1
3 35 – 33
A0 – A2
IOW
IOR
RESET
CLK
36
Select
37
39
4
and
Control
Logic
8
44
ERROR
SLCT
BUSY
PE
ACK
LPTOE
CS2
53 – 46
63
57
65
66
67
Parallel
Port
56
55
58
68
59
1
38
BDO
8
PD0 – PD7
INIT
AFD
STB
SLIN
INT2
4
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